The Helmholz GmbH bus coupler is designed to connect a PROFIBUS bus to TB20 peripheral modules and it supports the DP-V0 and DP-V1 protocols also it will recognize all connected peripheral modules and assign each module the corresponding inputs/outputs from the process image table. A functioning TB20 configuration will always require a bus coupler and at least one peripheral module, but can accommodate up to 64 modules of any kind connected in series with the bus coupler.

Supports all PROFIBUS baud rates
DP-V0 and DP-V1 support
Up to 64 peripheral modules